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Entries from November 2009

Acorn Woodpeckers and Steller’s Jays

Monday, November 30, 2009 · 1 Comment

We see Acorn Woodpeckers (Melanerpes formicivorus) only occasionally, so when two adults and a youngster showed up at the feeder the other morning we were delighted. These are showy birds, adding light yellow to the customary woodpecker color scheme of black/red/white. They came to the tube feeder with a spiral wire around the outside which is supposed to encourage woodpecker use, but our resident flickers (who nest inside the walls of the barn) rarely use it.

The third bird was smaller than the other two and took a while to figure out the feeder. He wanted to cling to the bark of the nearby tree and reach over to the seeds, but was finally doing it the easy way by using the wire.

I wish I could say I’d taken these photos, but without a long lens there was no point, and the birds were very wary of us even watching from the kitchen window. These are all from flickr, under Creative Commons licenses.

The picture below illustrates why they are called Acorn Woodpeckers. They drill holes to store the acorns. “As acorns dry out, they are moved to smaller holes and granary maintenance requires a significant amount of the bird’s time. The acorns are visible, and the group defends the tree against potential cache robbers like Steller’s Jays and Western Scrub Jays. Acorns are such an important resource to the California populations that Acorn Woodpeckers may nest in the fall to take advantage of the fall acorn crop, a rare behavior in birds.” [Wikipedia]. Their diet also includes insects caught in the air, fruit and seeds, and sap sipped from holes they drill.

Photo byKevin Cole, Creative Commons.

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The facial patches may be white or light yellow; our visitors had showy yellow faces. Very handsome birds!

AcornWoodpeckerYellow.jpg

Photo above by Len Blumin, Creative Commons.

The Steller’s Jay (Cyanocitta stelleri) mentioned above as a stealer of acorns is another notable bird here in the Pacific Northwest, striking in appearance and a bit thuggish in behavior. They’re larger than the Acorn Woodpecker. Upper parts vary with latitude from nearly black to dark blue.

Steller'sJay1.jpg

Photo above by Vincent, Creative Commons.

Some have light blue markings on the forehead and/or above the eyes.

Steller's JayMarkings.jpg

Photo above by dotpolka, Creative Commons.

Steller'sJayFeathers.jpg

Photo above by randomtruth, Creative Commons.

Categories: birds · nature · photos · wildlife
Tagged:

Does fibromyalgia “get better” with age? (Alert: Whining ahead)

Saturday, November 28, 2009 · 4 Comments

I’ve encountered this statement a few times since being diagnosed with fibromyalgia in 1992. Finally, at age 63, I think I’m qualified to offer an opinion upon it:

No, unlike a fine wine or a teething puppy, fibromyalgia does not get better with age.

It might seem that way, because some things that do change with age may lessen one’s concern about symptoms, or even ameliorate them.

As we grow older, we expect to have memory lapses, aches and pains, and reduced energy and strength. The person with fibromyalgia has a head start on all of these, believe me! But with advancing years, these symptoms seem a bit less unreasonable—or perhaps I should say unseasonable—even though I am still more tired, forgetful, etc., than an otherwise healthy person of my age ought to be.

Starting several years ago other people about my age began assuring me that my symptoms were “normal” for this stage of life, they had them too. Their intentions were benign, but I don’t like to hear this; not because I am clinging to the distinction of my disease, being “sick” but not “old”, but because I feel that the impairments of fm have been different. [It also echoes the remarks so familiar to people with fm or cfs or other chronic conditions, “Oh, you’re really tired/achy? Yes, I’ve had that too, just get some extra rest, you’ll feel better.”]

I was 35 when an injury caused the continuous pain and disturbed sleep that gradually turned into fibromyalgia by age 40 or so. During that time I went from having an unusually good memory, to the reverse. What did I do yesterday? Did I eat lunch today? What did I do this morning? Often I can’t answer such questions without some sort of reminder. Sometimes even with a reminder I have no recollection whatsoever of very recent events, and everything beyond a few days ago is gone or vague. Some days I grope for words—for a particular word, or to be able to put my thoughts into words at all. For a person who used to remember where on the page a certain passage of a book was to be found, or the details of bibliographic citations years after checking them, this sudden decline was, and remains, a severe assault upon my sense of who I am. And rightly or wrongly I think the daze that so frequently envelops me is not typical for a 63-year-old. Maybe at 85 I’ll feel it is age-appropriate. Until then, dammit, I’ll feel ticked off and robbed. Join the club, eh?

Still, inevitably over time one grows less sensitive to diminished abilities, and the limitations are less at odds with one’s lowered expectations.

As for symptoms seeming to decrease with age, I think this is a result of getting better at coping and self-pacing. I’ve learned to avoid things that aggravate the fm, such as late nights, loud or crowded places, being on my feet too long, and overexertion (whether it be in duration or in type of activity). I’m less of a perfectionist, I have a combination of medication and mental techniques to help me get to sleep most nights, and I feel okay about saying “I need to go lie down and rest for a while”. It’s following the naval maxim of “maintain a steady strain”.

The danger with all of this—lowered expectations, avoidance of stressors—is that it becomes a downward spiral. And age provides a reassuring excuse. Of course I’m doing less than I did last year, I’m getting older.

I keep pushing myself mentally, with challenging reading and dogged efforts to learn new things. Even though most of what I read today will be gone from my mind tomorrow, I tell myself that the effort may keep the neural connexions from deteriorating as we know they do with lack of use. Blogging has become a good motivator, encouraging me to do some writing, and follow research interests to produce and finish short pieces.

Physical exertion is harder because the pain and fatigue always increase, sometimes severely. When I was working a fairly physical job, I came up with this description for how I felt when I got up in the morning: “as if I’d been forced to run up a mountain, and then kicked and rolled all the way back down”. The chronic fatigue and pain in muscles and joints have been dialed back now that I’m not on my feet all day lifting, bending, carrying, etc., but they’re still there. I’m struggling to stay on a program of walking about 45 minutes every other day, motivated by a recent blood-test result that was in the pre-diabetic range. Some days I don’t want to expend a big part of the day’s energy for walking, or I feel worse than usual. There are no rewards of feeling noticeably better, but if I take the dog and my camera I will enjoy the walk itself.

Being off of methadone has made a big difference mentally and physically. It’s been two years last month, and I think I’m still improving. I couldn’t have walked for 45 minutes before that. Drugs that don’t help just weigh you down, and methadone does a lot more harm than most. (earlier post about getting off methadone)

So, in some ways I really am feeling better. But it’s not due to aging.

Thistles,GrazingAmong.jpg

Note for logophiliacs

After I put the word “whining” in the header, I encountered what would have been a good alternative if it weren’t quite so obscure. It has such appropriate associated meanings. I may whine and twine, but I’m trying not to dwine.

Twining
A minor lexicographical result of the devastating floods in Cumbria last week has been the appearance in at least two UK national newspapers of the dialect word twine, to complain or whine (“Cumbrians are a unique breed. They say what they see. They are hands-on people. They will twine and moan but then they will just get on with it.” — Metro, 23 November). It was at one time widely known throughout Scotland and the north of England. By way of another of its senses, to be fretful, ailing or sickly, it may be connected with dwine, another dialect word, to pine or waste away, which is from an ancient Scandinavian source. from Michael Quinion’s World Wide Words, # 667, 28 November 2009.

Photo by author.

Categories: fibromyalgia · health
Tagged: , ,

What is so special about the skylark? (that’s the bird, not the car)

Sunday, November 22, 2009 · 1 Comment

Of all the birds I’ve encountered in literature, the skylark has been most intriguing. First, because to the writers it is so powerfully representative of freedom, inspiration, hope, and joy; and secondly, because we don’t have them here in North America except for rare solitary “vagrants”, and introduced populations in British Columbia and on San Juan Island in Washington State. Every time I read an ecstatic poem about skylarks, I wondered why this bird, among all of Britain’s songbirds, evoked such emotion.

There are an abundance of poems to and about skylarks; I’ve collected some and put them here, with the less familiar ones at the top. For more, in a wide range of quality, see pp. 53+ in The Bird-Lovers’ Anthology (a Google book), or this search at Bartleby.com.

I had always made the facile assumption that the source of this bird’s literary mystique must be that it had an unusually beautiful song. Certainly it’s not known for its plumage; as befits a ground-nester, the skylark has cryptic coloration, with streaky earth-tones.

skylark, worm in mouth.jpg

Image by Daniel Pettersson (under creative commons license)

What about the song? It’s unusually varied––

Bird songs are among the most complex sounds produced by animals and the skylark (Alauda arvensis) is one of the most complex of all. The songs are composed of ‘syllables’, consecutive sounds produced in a complex way, with almost no repetition. The male skylark can sing more than 300 different syllables, and each individual bird’s song is slightly different.

and in captivity, skylarks have shown remarkable ability as mimics.

My neighbor has an English skylark that
was hatched and reared in captivity. The bird is a most persistent
and vociferous songster, and fully as successful a mimic as the
mockingbird. It pours out a strain that is a regular mosaic of
nearly all the bird-notes to be heard, its own proper lark song
forming a kind of bordering for the whole.
American naturalist John Burroughs (in Birds and Poets)

But perhaps they are not, in themselves, especially melodious. Burroughs goes on to criticize the skylark’s own song:

His note is rasping and harsh, in point of melody, when
compared with the bobolink’s. When caged and near at hand, the
lark’s song is positively disagreeable, it is so loud and full of
sharp, aspirated sounds.

And when I listened to the song myself, it seemed pretty enough but insufficient to stir so many hearts so deeply. You can hear it online: Portland Bird Observatory site ; or on Soundboard ––choose the one titled “Sky lark male song”, 33 seconds long.

I embarked on an exploration of the skylark, to find out the basis of its literary renown, and here’s what I found.

Thou only bird that singest as thou flyest,/Heaven-mounting lark…

SkylarkInDeadGrass.jpg

Photo © Martin Cade, Portland Bird Observatory site

First the basics: the Eurasian Skylark (Alauda arvensis) is larger than a house sparrow, and smaller than a starling; breeds from Britain to Siberia, and south to India and North Africa; and nests on the ground in open areas: meadows, salt marshes, heaths and farmland. The nest is a cup on the ground made from grass and hair.

Unlike most perching birds, the male sings in flight, and what a flight: he starts up suddenly from the ground, goes up high in the sky––50 to 100 meters––and hovers there for a few minutes, then plummets down to land on the ground. And all this time he is singing: while he rises so high that he may be scarcely visible, while he stays aloft, while he plunges to the earth again. “…drowned in yonder living blue/The lark becomes a sightless song “ (Tennyson, In Memoriam).

Experiencing the Skylark’s song

So, what moves the heart so much, when the skylark sings?

SkylarkDawnBretonPainting.jpg

Jules Breton, Le chant de l’alouette (“Song of the Skylark”), 1884</

I think we can sum it up this way: early, sudden, humble, ascendant, prolonged.

Early

If you get up very early in Britain from April to August, and out into an area of grassland, farmlands, or marsh, this is likely the most prominent bird you will hear, starting even before the sun rises. (They sing throughout the day, but it’s most striking in the hush of dawn.)

The bird sings not from a perch but while flying, so the song emerges from the sky above, as the night flees and the first glow of dawn appears. It becomes associated with all the possibilities of a new day, the freshness of dawn, the light banishing darkness.

skylarkInFlight3.jpg

(Photo)

“I rose early. I went into my garden before breakfast and stood listening, but towards the common there was nothing stirring but a lark.”
H.G. Wells, War of the Worlds

“Though there was nothing very airy about Miss Murdstone, she was a perfect Lark in point of getting up. She was up (and, as I believe to this hour, looking for that man) before anybody in the house was stirring.”
Charles Dickens, David Copperfield

To hear the lark begin his flight,
And singing startle the dull Night,
From his watch-tower in the skies,
Till the dappled dawn doth rise.
John Milton, L’Allegro, l. 41

[Spring] When … merry larks are ploughmen’s clocks…
Shakespeare, Love’s Labour’s Lost V, ii.

The association of the lark with dawn is so strong, poets even credit him with summoning the sun:

The busy day,
Waked by the lark, hath roused the ribald crows.
Shakespeare,Troilus and Cressida, IV, ii

The skylark is early in another way too, beginning to sing in the first part of summer (it’s considered to provide “the quintessential sound of an early British summer”), so it represents the end of…no, not the end of wintry weather––that makes reappearances even in summer––but the prospect of some warmer sunny days. Don’t take this lightly; drizzle, rain, fog and chill are so dominant that the climate was once described by a tongue-in-cheek booster, “writing on one of those raw, damp, sodden English winter days”, as “the best in the world because it is just depressing enough and, though beastly, not too beastly” thereby contributing to a hearty vigor. (Mary Borden, “In Defense of the English Climate”, Harper’s Magazine June 1930)

Being associated with the idea of summer is more powerful than we post-industrial urban humans can easily comprehend. The arrival of spring and summer meant not just longer days and better weather, but the beginning of another growing season, an end to the monotonous diet and shortages of winter, the return of birds and flowers, birthing season for livestock, easier travel between farms and villages.

Sudden

Only the lark leaps out of ruts like a live dart, and rises, swallowed by the heavens. Then the sky feels as though the Earth itself has risen.
Gabriela Mistral, The Lark

And now the herald lark
Left his ground-nest, high tow’ring to descry
The morn’s approach, and greet her with his song.
John Milton, Paradise Regained, bk. II, l. 279

Humble yet ascendant

This is a small brown bird, which nests on the ground and seeks invisibility there.

skylark Nest2.jpg

Photo, Pensthorpe Nature Center.
(Drawing of a skylark constructing the hollow and lining it with grass). There’s a terrific commercial photo of a startled skylark rising from the nest as several well-grown chicks call in protest.

Its nest, eggs, and chicks are vulnerable to trampling and to all sorts of predators including rats (infra-red photo below; if you have trouble making out the parent bird, on the left, look for the bright white dot of the eye).

skylarkDefendingNestFromRat.jpg

Yet it abandons its reclusive habits, to deliver a long song while ascending and hovering in the sky. It’s unclear how much time the male spends at the nest, but he does fly up almost vertically from his unseen location on the ground when beginning his song display.

skylarkInFlightBlurry.jpg

Higher still and higher
From the earth thou springest,
Like a cloud of fire…
Shelley, To a Skylark

Perhaps John Burroughs, whose critical judgment of the skylark’s song was quoted earlier (“…positively disagreeable, it is so loud…”), would have liked it better had he been hearing it while the bird was far overhead, instead of nearby in a cage.

Several poets have drawn particular attention to the skylark’s two worlds, sky and earth. It soars, sings, then drops to a point unseen on the ground where mate and nest have remained. Wordsworth says “Type [model] of the wise, who soar, but never roam—/True to the kindred points of Heaven and Home.”

With regard to ascendant flight, The Royal Society for the Protection of Birds says on a page for children that “Quite often, a skylark will fly over to the other side of the field before launching itself upwards into the sky. This is to trick you into thinking that it is nesting somewhere else, to keep its nest site a secret.” Since singing isn’t mentioned, maybe this is the (non-singing) female reacting to someone getting too close. The sudden rise of the singing male is nearly always a feature of his literary appearances.

Prolonged

The song generally lasts 2 to 3 minutes, quite long by birdsong standards, and is often even longer later in the season. What a great effort is put forth by this bird (which weighs only 30-45 g), singing continuously while he is zooming up into the air, holding steady aloft, and plummeting down!

SkylarkInFLightMontage.jpg

Photo montage by Mark Kilner, (under creative commons license).

Putting all this together, imagine standing in a field near dawn,

SkylarkDawn3.jpg

listening to birdsong pouring down from the sky for two minutes or four, a very long time, as the singer rises, hovers, swoops above you, often visible only as a speck in the blue. Finally he plummets to the ground and is lost to view. (Photo, dawn in the Lake District)

The human listener is drawn upwards, inspired, filled with joy.

Aside from inspiring humans, what might be the function of the Skylark’s song?

Male birds sing mostly to proclaim their territory. For Alauda arvensis, with its long and varied song, there is a refinement to this:

”Dialect features are used for N–S recognition in a territorial species with a large repertoire”––or in other words,

Uttering the song serves to mark a male’s territory; listening to nearby songs lets him know exactly who’s where. It has been shown that neighboring skylarks have similarities in their songs, “common sequences of syllables “, which aren’t found in the songs of males from outside the area. When a resident male hears a song lacking the shared phrases, he reacts more strongly to defend his turf (and mate) because he knows the singer is a stranger and more of a threat than one of his familiar neighbors who already have established territories. It makes me wonder, when a stranger succeeds in settling in, how long does it take him to acquire the local dialect? Or is that a rare event, with vacant territories being claimed by the offspring of local pairs?

In an interesting turn of phrase, this phenomenon is called “the ‘dear-enemy effect’ … a reduced aggression from territorial animals towards familiar individuals, generally neighbours, with whom relationships have already been established”, presumably in order to conserve energy.

Singing as a conspicuous show of vigor

The long effortful singing serves as a proof of fitness: to potential mates before the breeding season, and at all times to potential predators such as merlins––small falcons that specialize in hunting songbirds. (Merlin, Falco columbarius, Photo)

SkylarkMerlinOnPost.jpg

The male lark continues to sing even as he is being chased by aerial hunters like kestrels and merlins. A study of anti-predation behaviors found that “[m]erlins chased non- or poorly singing skylarks for longer periods compared to skylarks that sang well. A merlin was more likely to catch a non-singing than a poorly singing than a full-singing skylark.” [the repetition of ‘than’ is in the original, perhaps indicating a descending likelihood of being caught]

Conservation status of the Skylark

The skylark population in Britain and Western Europe has dropped precipitously over the past 30 years; I found estimates for Britain ranging from 50% lost, to 70% lost. In some areas they are gone completely. The decline is most likely caused by the move to from spring to winter sowing of cereals such as barley and wheat, which deters late-season nesting attempts––second and third clutches––and may reduce winter survival because there are fewer fields of stubble. For nesting and foraging, the birds prefer areas with low cover; ideal vegetation height is 20-50 cm. I would think that the use of pesticides is probably a factor also since the young are fed on insects. Use of previously fallow ground for biofuels further reduces their nesting areas.

SkylarkNestEggs.jpg

(Photo BBC)

Since this problem was recognized, farmers have been encouraged to leave unsown “skylark plots” in the midst of their fields and so far results are “encouraging”, in that the rate of decline is not so sharp. [More on skylark conservation in Britain here; Royal Society for the Protection of Birds report, The State of the UK’s Birds 2008 here.]

skylarkSet-asidePlotEngland.jpg

Skylark set-aside plot.

SkylarkPlotsAerialView.jpg

Aerial view of skylark plots.

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Recently fledged juvenile skylark after banding.

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Banded skylark about to be released. These birds were caught by startling them up into pre-set mist nets. Both photos from Mark Thomas, Bucktonbirder.

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Skylark, Blackbush Fen, 6th July 2007, © Peter Beesley; Cambridgeshire Bird Club.

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Skylark, Dorset, photo © Charlie Moores.

I can’t leave the subject of the skylark without mentioning Ralph Vaughan Williams’s lyrical work for violin and orchestra, The Lark Ascending. It is said to have been inspired by George Meredith’s long poem of the same name, but surely the ground had been prepared by Williams’s own experience of the skylark’s song and flight in his native England. If you look on iTunes you can find one offering of the entire 14 minute piece, for $0.99; the rest require you to buy an album. Or hear it on Youtube; many choices are there, including these: London Symphony Orchestra , 5 minute excerpt; or entire, in two audio installments, Orchestre de Chambre I Musici de Montréal, part 1, part 2.

Categories: environment · nature · photos · wildlife
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Giving pills to dogs: a small but useful trick

Wednesday, November 11, 2009 · 1 Comment

You’ve found the food that works best for hiding pills and you think you’re headed for success, getting these pills into your dog. But then the rascal rolls the food-ball around in his mouth, feels the pill, and spits it out. Now he’s suspicious!

Here’s a trick that has worked for us. Make at least two treats without pills. Give one of these first, then give one with a pill in it. Strike a balance between covering the pill adequately, and making the treat so large it isn’t gulped right down. At each point, allow the dog to see that you have additional yummy bites waiting for him; he’ll be less inclined to take his time, more willing to bolt down each treat in order to get the next one. Give a treat without a pill as the last one. If your dog is really suspicious, and you have more than one pill to give, you may want to alternate: plain, pill, plain, pill, plain.

Cheese is our usual cover for pills, and the best thing we’ve found, actually, is that spray-on cheese, the new version of Cheez Wiz. Put pill in the palm of your hand, squirt on the cheese-like substance (get some under the pill too) and watch your dog go for it. Here too it helps to use plain cheese-blobs as the lead-in, and keep your dog anticipating the next one so he’s keen.

But with the method I’ve described, we have successfully pilled even suspicious dogs with pills smushed between slices of cheddar or wrapped in a piece of lunch meat.

Categories: animals, domesticated · dogs · things that work
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Lizard skin

Monday, November 2, 2009 · 1 Comment

There are quite a few alligator lizards around our place, and one of them left a shed skin for us to find last month. Our lizards are probably the Southern Alligator Lizard, (Elgaria multicarinata). (See here for range map and basic info.)

LizardSkinLive.jpg

[photo © Gary Nafis, from the californiaherps site]

The skin is complete, although in two pieces (ventral or belly view below).

LizardSkinEntireHoriz.jpg

The larger scales of the head

LizardSkinHeadNafisPhotoLiving.jpg

[photo © Gary Nafis, from the californiaherps site]

are clearly visible, or at least their clear covering is.

LizardSkinHeadOneInch.jpg

Also the legs, as they were arranged when the lizard wriggled and scraped its way out of the skin.

LizardSkinFrontlegs.jpg

Here are the rear legs and vent.

LizardSkinRearLegs.jpg

And here’s a photo by Mark Leppin, in Northern Oregon, of the belly of a live alligator lizard:

LizardSkinLiveVentral.jpg

The shed skin is turned inside out as the lizard peels it back over its head, by wriggling and scraping against whatever’s handy. Unlike most lizards, the alligator lizard sheds its skin in one piece (the one we found tore in handling), but it is like others in usually eating the shed. Depending on an individual’s health and rate of growth, it may shed every four to six weeks. Beforehand lizards and snakes may seek out water or damp places to help loosen the skin. The process is said to take only a few hours for those that shed in one piece.

Alligator lizards are insectivores but also take small eggs, snails, and probably anything else that they can find. The young are live-born, and we see them each summer––scarcely over an inch long, and very fast once they learn that everything bigger than they are regards them as lunch. The adults lose their tails once in a while, perhaps to snakes or other predators, and regrow them but the regenerated tails look stubby, not long and whiplike. Every dog we’ve had has tried to catch these creatures, without even coming close. My attempts to take pictures of them have all failed too, they’re just too wary and quick.

Categories: nature · photos · wildlife
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Photos: mute swan with cygnets

Sunday, November 1, 2009 · Leave a Comment

swanMother1.jpg

Swan2.jpg

See these full-size (much better!) here. [Photos by Richard Meston, on a visit to Bicton Park Botanical Gardens near Sidmouth, Devon. They appeared in the Daily Mail.]

Categories: photos · wildlife
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